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63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
/* Copyright (C) 1999, 2000, 2002, 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <unistd.h>
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#include <sysdep.h>
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#include <alloca.h>
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#include <sys/syscall.h>
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#include <bp-checks.h>
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int
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__execve (file, argv, envp)
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const char *file;
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char *const argv[];
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char *const envp[];
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{
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#if __BOUNDED_POINTERS__
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{
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char *const *v;
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int i;
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char *__unbounded *__unbounded ubp_argv;
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char *__unbounded *__unbounded ubp_envp;
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char *__unbounded *__unbounded ubp_v;
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for (v = argv; *v; v++)
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;
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i = v - argv + 1;
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ubp_argv = (char *__unbounded *__unbounded) alloca (sizeof (*ubp_argv) * i);
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for (v = argv, ubp_v = ubp_argv; --i; v++, ubp_v++)
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*ubp_v = CHECK_STRING (*v);
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*ubp_v = 0;
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for (v = envp; *v; v++)
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;
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i = v - envp + 1;
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ubp_envp = (char *__unbounded *__unbounded) alloca (sizeof (*ubp_envp) * i);
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for (v = envp, ubp_v = ubp_envp; --i; v++, ubp_v++)
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*ubp_v = CHECK_STRING (*v);
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*ubp_v = 0;
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return INLINE_SYSCALL (execve, 3, CHECK_STRING (file), ubp_argv, ubp_envp);
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}
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#else
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return INLINE_SYSCALL (execve, 3, file, argv, envp);
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#endif
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}
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weak_alias (__execve, execve)
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